Line casting and composing machine



June 21; 1938.

L. M. POTTS LINE ,CASTING AND COMROSING MACHINE Original Filed Jan. 2,1932 3 Sheets-Sheet l INVENTOR LOU/v5 M. P0775 ATTOR Y June 21, 1938. M.P'OTTS LINE CASTINGAND COMPVOSING MACHINE Original Fild Jan. 2, 1932 sSheets-Sheet 2 INVENTOR LOU/5 M BY f? pom;

ATToR Y June 21, 1938. L, p Ts LINE CASTING AND COMPOS'ING' MACHINE 5Sheets- Sheet 3 Original Filed Jan. 2 1932- R O T N E V m LOU/5 M. Pomsv Patented June 21, 1938 LINE CASTING AND OOMPOSING MAGHINE Louis M.Potts, Evanston, Ill.', assignor,.by mesne assignments, toTeletypesetter Gorporation, a corporation of DelawareOriginalapplication January 2, 1932, Serial No.

Dividedand this application Aprilf21,.

1934, Serial No. 721,657

38 Claims.v

The present invention relates to linecasting I and composingmachinesandmore particularly to the automatic operation by stored conditions oflinecasting and'composing machines having a plurality of matrix: storagemagazines. This application is a division of copending applicationSerial No. 584,387, filed January 2, 1932, which has matured into Patent2,057,652 granted October 13, 1936. I

For convenience in describing the present invention, standard structuresof well known commercial' linecasting and composing machines, asillustrated in the accompanying drawings, will be referred tohereinafteras the principal machines, while the mechanisms which are operative forinitiating. the various functions of the principal machines will bereferred to hereinafter as the control units.

The primary object of the present invention is to provide a simplereliable and efficient mechanism; operativein conjunction with anautomatic control unit of a linecasting and composing machine for.controlling, in: response to a predetermined condition, the selectiverelease of matrices from the different matrix magazines.

Briefly, one adaptation of the present invention consists in theprovision of a set of shiftable release reeds that are operativelysupported in a cradle member. A lever connected to said cradle memberfunctions to shift it and its set of reeds under the actuation of a camcarried upon a control shaft that is capable of being arrested in each.of two radially opposite positions. In accordance with one of itspositions the operating shaft through its control cam allows theshifting lever to. assume one shiftable condition, while in accordancewith. another of its positions it allows it to assume an oppositeshiftable condition.

In this connection, it should be understood that still other shiftpositions maybe obtained similarly by providingv additional means forarresting the shaft in various other angular positions for therebyestablishing alternative alignments of the commonset of matrixrelease-elements.

The arresting of the control shaft in various radial positions isaccomplished by providing. a driving clutch for operating the controlshaft, the driven member of which carries a beveled lug. In the path ofthe lug, as it describes its cyclic revolution, are presented aplurality of disengagement levers (two in the present embodiment), eachhaving inclined surfaces which the mg is adapted. to encounter forcausing. to be withdrawn thereby the: driven. portion of the clutchfrom. the drivingportion. The clutch release. levers areeachcontrolledbyone of. apluralityof selectable bars which inturn are selectively"conditioned. by. a. selecting mechanism of 1 the controlunit,.as.described inthe parent application referred to. above.

For a better. understanding. of this invention reference willbeh'adtothe accompanying drawingsu and. to the following detailed specificationwhereincorres-ponding elements are designated-by similar referencecharacters throughout and wherein;

" Fig. 1 is a perspective view of: a linecasting and composing. machinehaving appliedv thereto a. structure embodying features of: the presentinvention,

Fig.. 2. isv a transverse: sectional view of the mechanism, of a.principal. machine illustrating one. formof multiple. magazine.apparatus, and illustrating a preferred embodiment of the presentinventionapplied thereto,

Fig. 3 is a view generally similar to Fig. 2'but illustrating analternative structure of duplex magazine: apparatus and featuring. analternative application of I the present invention thereto,

Fig. 4 isa detail-perspective-view'of; the clutch mechanism illustratedin Figs. 2and 3,

Fig. 5isa schematic wiring diagram of a control circuit as applied to a.control. unit such as the one disclosed in the parent application, and

Figs. 6 and 7', are detail sectional views of a removable keyboard;

Commercially well known types of linecasting machine structures.employing multiple or duplex magazines are=illustrated in: Figs. 2 and3. In a'preferred embodiment of the present inventiOILtheIG is.contemplated the provision ofa structure the principles of, which may beapplied with equal facility to either of these com.- mercially' well.known models. Fig.v 1 illustrates more or less schematically'thecomposing: mechanism of a slug casting. machine, reference charactersH.- and. I2 denoting correspondingly the top and bottom onesof. a pairofmultiple magazines arranged vertically in tandem. In the structureillustrated. inFig. 2 each magazine-is provided with a plurality ofescapement segments [3 urged; by springs it. into their foremostpositionsgwhereat their foreportions l5. are presented so astoiengage'the-shoulders I6-of those matrices II which are in; theirfinal positions inthe magazines I I. and. I2 from which they may bereleased during subsequent selective operation. The segments l3. areactuated in an oscillatory motion in opposition to their springs it byvertically disposed release reeds l8 and [9 the former of which areassociated with magazine H and the latter with magazine l2.

When actuated by the release reed l8 or I9, the segments 53 are rockedabout their arcuate centers causing their rearmost portions 2| to bepresented within the slots 22 of the penultimate ones of the alignedrows of matrices 11. When this occurs, the foreportion l5 of eachsegment i3 is withdrawn from the foremost matrix 11, allowing it togravitate into its respective one of a plurality of assembling chutes23. Following this operation and upon the withdrawal of the release reedH3 or E9, the segments I3 are again permitted to respond to theirsprings l4, and during this transition the aforementioned penultimateones of the matrices N, then becoming the foremost ones, are permittedto gravitate through a short distance or until the foreportions 15 arepresented within the slots 22, after which the matrices are allowed tomove only until said portions .65 engage the shoulders !6 thereof.Meanwhile, of course, subsequently following matrices are moved into thepenultimate positions in accordance with the well known practice ofcirculating matrix storage magazines.

Each of the release reeds l8 and I9 is provided with a downwardlyprojecting portion 24 and 25 arranged in close juxtaposition with anassociated projection of the alternative magazine. In other words, theprojection 24 and its associated release reed I8 communicate with anescapement segment l3 which serves a class of matrices bearing certaincharacter intaglios that usually are related to those of the magazine 12whose escapement i3 is served by a release reed I 9, the downwardlyextending projection 25 of which is adjacent to the said projection 24.With this arrangement, a'common release reed 26 is availed of to serveeach pair of projections Zfil and 25 alternatively in accordance withthe position in which it is placed by its supporting carriage or cradle21.

The alternative positions of the release reeds 26 and cradle 21 areillustrated in solid and broken lines respectively in Fig. 2. Thecarriage 21 is rocked about the supporting fulcrum 28 that rests upon aledge 29 formed with the main frame structure of the principal machine.

The common release reeds 26 are moved up wardly by associated ones ofa-plurality of weight bars 3!, as described in the parentapplicationreferred to above. These weight bars are selectively conditioned byassociated ones of a corresponding plurality of selectable elements,designated generally by the reference numeral 20. In accordance with theparticular embodiment, two of these elements, which have no operativeassociation with any of the weight bars 3|, are delegated to thefunction ofcontrolling two alternative conditions of the multi-magazineshifting apparatus described above.

These selectable elements or bars are indicated by the referencecharacters 32 and 33 and are selectively conditioned by the placement ofa set of coded selecting bars 30. Each element 32 or 33 is provided withan associated pawl 34 that is normally spring-urged (not shown) into theposition indicated in Fig. 2 and whereat its tooth is brought intoengagement with a bell crank lever 35 or 355, the former of which isshown pivoted at 37 and the latter at 38. Each of the bell cranks 35 and36 is provided with a horizontally extending portion having an openingintermediate thereof, one side of which is beveled in a conventionalmanner and presented in alignment radially in the path of a projection39 carried by a hub portion 4| of the driven part of a clutch 42, seeFig. 4, through which power is communicated from the driving shaft 43 toa shift operating cam 44.

Through the engagement of projection 39 with each of the bell cranks 35and 36 the driven portion 4| of clutch 42 may be disengaged from itsdriving position causing shaft 43 to be arrested in either one of twopositions, illustrated by the position of cam 44 in solid and brokenlines, during which the latter is permitted to assume either of twoalternative positions.

When in its solid line position, as illustrated in Fig. 2, the peripheryof cam 44 engaging a roller 45 that is rotatably carried by thedepending extremity of a lever 46, rocks the lever counterclockwiseabout its pivot 40, and causes it through its upper extremity and link4"! to rock cradle 21 in a similar direction, aligning the set of commonrelease reeds 26 with the projections 24 of the release reeds IE; butwhen cam 44 is arrested in its alternative position, as indicated inbroken lines, the roller 45 is permitted to recede, allowing lever 46 tobe moved clockwise and causing it through link 41 to rock cradle 21 soas to align the common release reeds 23 with the projections 25 ofindividual release reeds l3.

As explained, the release of each bell crank 35 and 33 is executed bythe trippingv of its pawl 34 which may be accomplished manually or underthe control of the signal responsive unit and which moves forward, whenautomatically controlled, together with its selectable element 32 or 33in response to the selective operation of a set of code bars 30, Fig. 1.The other of the bell cranks 35 and 36, not released, is normallymaintained in its effective position and receives the projection 39causing to be withdrawn the driven portion 4| of clutch 42 in a position(in the pres ent embodiment) 180 from its previously arrested position.

The selectable elements 23, 32, and 33 may be selected manually orautomatically as fully described in the copending applicationhereinbefore identified. The manual selection of any of these elementsis accomplished by means of a keyboard. Figs. 6 and 7 illustrate aremovable keyboard which may be installed for the purpose of affording amanual control without affecting the features of the automatic device.The keyboard includes a supporting frame it and a plurality of pivotedkeylevers 9| arranged in staggered relationship preferably correspondingto the standard typewriter keyboard practice. For each code bar 30 ofthe control mechanism there are provided two cooperative parallel bars92 and 93 which are horizontally disposed for vertical move-- mentparallelly above the corresponding code bar. As will be noted in Fig. 7,the keylevers 9! are horizontally and parallelly disposed at theirforemost portions 94 where they overlie the several parallel bars 92 and93. Thus when any keylever is depressed, it is adapted to engage all ofthe several sets ofbars. One bar 92 of each set has cut therein notches'15 of varying lengths so as to leave projections 11, while the otherbar 93 of each set is similarly cut but in opposite relation to thefirst so that where the former is provided with a notch Hi, the latteris provided with a projection Ti and vice versa. Accordingly, eachkeylever when depressed will'impart a similar movement to one or theother lever of each set. Atz'each end. and pivotally supported betweeneach pair of bars is a lever 18, the corresponding horizontal arms 19 ofwhich aresimilarly bent at. right angles to the main body portions butreversely each from the other on the same lever so as to engage by meansof the bent portions 19 the bar 92 or 93 adjacent thereto. In thismanner the depression of an uppermost bar through the toggle arrangementcauses the presentation of the other bar of the set to the uppermostposition. The several notches and projections of all the sets of bars 92and 93 are so arranged. that upon the depression of each keylever thereisset up an individual condition of the several bars..

The levers 18 are provided with a third. arm 8| perpendicular to theothers and a connecting link 82 joins the arms 8| of each set so as toequalize the movement thereof. The links 82- are provided at one endwith pins 83 adapted to engage secondary levers 84, the other ends, ofwhich are suitably articulated to the named code bars 30. In this mannerthe position of each of the primary levers I8 is relayed to itscorresponding code bar as the same is induced by the keylevers 9|, andthe selection of a selectable element 26-to operate a weight bar andcause the release of a matrix, or the selection of one of the selectableelements 32 and 33 to initiate the operation of cam 44 is accomplishedby the setting of code bars 30 under the control of bars 92 and 93actuated by keylevers 9| just as if the particular selectable elementhad been selected in response to the setting of the code bars 30 fromthe record reader mechanism 6|.

Thus the bars 32 and 33 being selected, manually or automatically, inthe same manner as any of the other selectable bars as described in thecopending application referred to above, cause to be associated one orthe other of the magazines H or l2 with the common set of release reeds26. This permits the selection of alternative magazines tobe powerexecuted under manual initiation or under the direction of an automaticcontrol unit.

The shifting of operating lever 46 from one of its positions to theother having associated with it the movement of a considerable mass ispreferably executed more slowly than is the performance of otherfunctions under the supervision of the automatic control unit. For thisreason,

shaft .43 is preferably of somewhat reduced speed as in the case of theBold-Roman operating shaft 268, described and disclosed in the parentapplication. For this reason also the record reader mechanism 6| ismomentarily arrested while the magazine shift operation is beingexecuted. This is to avoid having to insert blank signals in the tape toabide the completed shift operation. The record reader arresting systemherein described serves a purpose similar to and differs structurallyfrom, the record reader arresting system shown, described, and claimedin reissue Patent No. 20,410, granted June 15, 1937 to E. S. Larson.

A preferred method of controlling the performance of the record readerby theoperation of. the magazine shift apparatus is indicated in Fig. 5.Here the control circuit 62, as explained in the parent application,includes in series a number of circuit breakers all of which must be inclosed condition to permit the energization of the record reader releasemagnet 63. The driven portion of clutch 42 is illustrated as carrying adouble apex cam 64, the apices of which are so arranged that duringeither of the rest positions-of cam 44: one

or the other of 'saidapices are in contact with the spring. blade: of?a. contact pair: 65.. At other times, or when cam44 is in motion, theapices are removed. from. the: contacts 65:1 permittingv them tocomeajar and. causing the circuit. 623tobe broken. This deenergizesmagnet 63 and causes the arrest. of therecord reader 6|.

Included: also in: circuit- 62 are contacts 2l6 and. the contactscontrolleduby lever 36L. The noted contacts are normally closed. Asfully. described in the parent'application whichzmatured intoPatent No.2,057,652,.cntacts 26:! are under the control. ofthe selector barthrough which the elevator raisingm'echanism isreleased for operation.Consequently, during-the operation of the elevator, contacts 261 areopened and electromagnet 6.3 is deenergized. Lever 36! is under thecontrol of the emquad .pull bar disclosed in the parent application andits maturing patent. Under. certain circumstances, lever 36! is operatedand the contact controlled thereby is opened for causing'thedeenergization of electromagnet 63. However, as far as the presentinvention is concerned, contacts 26I and the contacts controlled bylever 36! are not necessarily involved in the operation of thedisclosedstructurex In. accordance with the structureillustrated in Fig.B'there isialso' shown a pair of matrix storage magazines alternativelyselectable and arranged vertically in tandem. In this, case, how eventhemagazines are themselves shiftable so as to have their escapementoperating slides H brought into communication alternatively with acommon set of pivoted release levers 12 which are actuated by releasereeds 26 and a common set of assembling chutes 23. The shifting of themagazines H and. I2 is executedthrough the instrumentality of a togglesystem comprised of a pair'of links and 52-that' are capable of beingdisposed in either of twopositions; as illustrated insolid andbroken-lines in Fig. 3. Thelink- 52 is anchored to a shaft 53 to whichis also secured anarm 54 that is connected through. a rod 55 to thelever 46'. The shifting of the lever 46 in a manner similar to thatdescribed in connection with Fig. 2 and the structure illustratedtherein, causes inthis case the movement of the toggle. linkage 5l-52into one or another of its alternative positions, and this assemblythrough itslarticulation at 56 witha supporting structure which ispivoted at 51 and which supports the magazines H and [2 causes thelatter to be shifted so thatone or another of them is brought intoalignment with the chutes 23 and the release reeds 26. As in the easedthe first described embodiment, a circuit controlling cam 64 may beprovided for the purposeof arresting the record reader 6| during theshift operation. Thisobviates the necessity for having to insert blankor delay signals in the control tape.

Except for the difference in the connection between lever 46 and thetoggle elementsh5l, 52, and 54', the remaining-portions of the apparatusessentially embodying the principles of themesent invention are quitesimilar to that illustrated in connection with the showing. of Fig; 2.vThus it will be noted that an important feature of the present inventionis its versatility whereby mechanismsbuilt upon the principles of thisinvention may be easily and readily applied to various types of linecomposing mechanisms without materially changing their-operativestructure.

While the present invention has been explained and illustrated in:contemplation of a specific embodiment, itshould be understood thatnumerous modifications and variations may be made without departing fromthe spirit or scope thereof. It is, therefore, intended not to belimited to any of the illustrative details of the accompanying drawingsnor to the specific language employed in the foregoing specification,but to be permitted instead a latitude of interpretation as indicated bythe hereunto appended claims.

What is claimed is:

1. A composing machine including a plurality of magazines each having aset of matrix storage channels, a system of matrix release elementscapable of association with the channels of any one of said magazines,and means automatically responsive to stored signals for effectingrelative movement between said magazines and said system of releaseelements.

2. In a composing machine, a plurality of magazines each having a set ofchannels, a plurality of matrices in each channel, a single matrixrelease mechanism common to corresponding channels in different ones ofsaid plurality-of magazines, and automatic means for effecting relativemovement between said magazines and said matrix release mechanism tobring a desired channel under the control of said release mechanism.

3. In a linecasting and composing machine, a

matrix release mechanism, a plurality of matrix storage magazines, meansfor effecting relative movement between said mechanism and saidmagazines, and an automatic control unit including apparatus responsiveto stored signals for operating said matrix release mechanism and saidmovement effecting means.

4. In a line composing machine, a plurality of matrix storage magazineseach having a number of channels wherein matrices are received'to beselectively released, a set of matrix release mechanisms capable ofassociation with the channels of any one of said magazines, means forassociating various ones of said plurality of matrix storage magazineswith said set of release mechanisms, and an automatic control deviceincluding means responsive to stored signals for initiating theperformance of said associating means. i

5. In a line composing machine, a plurality of matrix storage magazines,a set of matrix release devices associated with each of said magazines,a common set of actuators for said sets of release devices, and meansunder the control of stored signals for shifting said actuators toassociate them with said sets of matrix release devices of various onesof said magazines selectively.

6. In a line composing machine, a plurality of matrix storage magazines,a set of matrix release devices associated with each of said magazines,a common set of release device actuators, and means under the control ofstored signals for shifting said plurality of storage magazines toassociate them individually and selectively with said common set ofrelease device actuators.

7. In an automatic control apparatus for in itiating the variousfunctions of a line composing machine, the combination with a shiftinglever for positioning an alternativelypresentable organ, of anoperatingshaft, means associated with said operating shaft for impartingmotion to said shifting lever in accordance with the position of saidshaft, and meansresponsive' to, stored signals for arresting said shaftin various radial positions.

8. In a linecasting and composing machine, a plurality of matrix storagemagazines, and means for shifting said magazines including a shiftinglever, an eccentric, a power driven shaft for rotating said eccentricand for thereby imparting motion to said lever, and selectivelycontrollable means for arresting said shaft in various angularpositions.

9. In a line composing machine, a plurality of storage magazines eachcontaining a set of matrix supporting channels, a common set of releasemeans including an element identified with corresponding channels ofeach of said magazines, means for associating said set of release meanswith each of said magazines individually including a shifting lever, apower driven shaft rotatable for imparting motion to said lever, and aplurality of arresting means for stopping said shaft in various angularpositions.

10. In a line composing machine, a plurality of matrix storagemagazines, means for shifting said magazines to align each of themselectively for composing operation, and an automatic control deviceincluding a signal responsive mechanism for selectively operating saidshifting means. 1 y I 11. In an automatic control unit for linecastingand composing machines, a mechanism for performing shift conditioningoperations comprising a power driven shaft, a shifting lever, a camcarried by said shaft for imparting motion to said shifting lever inaccordance with the peripheral engagement between said cam and saidlever, and means for arresting said shaft in various angular positionsfor accordingly controlling the degree of movement imparted by said camto said lever.

12. In a line composing machine, a plurality of matrix carryingmagazines, a composing apparatus including a plurality of matrixreleasing mechanisms having associative capacity with each of saidmagazines, and means for associating each of said magazines with saidplurality of mechanisms including a magazine shifting linkage and anoperating cam for moving said linkage in accordance with its arrestedposition.

13. In a linecasting and composing machine, an apparatus for shiftingeach of a plurality of matrix storage magazines into line composingposition including a carriage for holding a plurality of magazines, alinkage connected to said carriage, a power driven'means for shiftingsaid carriage through said linkage, means for initiating the operationof said power driven means, and means independent of said initiatingmeans for arresting said power driven means in predetermined angularpositions.

14. In a linecasting and composing machine, a composing apparatus, aplurality of matrix storage magazines, a shiftable carriage for holdingsaid plurality of storage magazines, and power driven apparatus forshifting said carriages so as to bring various ones of said magazinesinto operative relation with said composing apparatus including arotatable actuator and means for selectively arresting said actuator invarious angular positions.

15. In a linecasting and composing machine, a housing affording aplurality of matrix storage chambers, a plurality of matrix releaseelements fewer in number than the number of said chambers, and means forassociating various ones of said chambers with said elements including aill) and said chambers, and means for arresting said shifting deviceduring its association with any one of said chambers.

16. In a linecasting and composing machine, means for storing aplurality of classes of matrices, matrix release mechanisms capable ofaccommodating a limited -number only of said classes, and means forshifting the association between said mechanisms and successive ones ofsaid plurality of classes of matrices including a selectively operableactuator and means for arresting said actuator in various positions.

17. In a selector mechanism, a set of code bars, means for moving saidcode bars individually in response to associated signals, a selectorcontrol shaft, and a set of means for arrestingsaid shaft in variousangular positions, each of said arresting means being under the controlof one of said selectable elements. 7

18. In an automatic control mechanism, a function control shaft,frictionaldriving means for said shaft, a pluralityof stopelernentsradially disposed for arresting. said shaft in various angularpositions, and a corresponding plurality of selectable elements eachassociated with one of said stop means and adapted upon its selection torelease said shaft from its associated angular stop position.

19. In a linecasting and composing machine, a plurality of matrixstorage magazines, a keyboard mechanism including elements individuallyassociated with corresponding channels in each of said magazines, arecord reader responsive to stored signals including means forselectively operating said keyboard mechanism, and means also associatedwith said record reader and responsive to certain signals for shiftingthe relationship between said elements and each of said plurality ofmagazines.

20. In a matrix composing machine, a plurality of storage magazinespresented for selective accessibility, a set of matrix release actuatorsto be selectively associated with each of said plurality of magazines,an automatic control unit including a record reader mechanism, a set ofcode bars positioned by said mechanism, a pair of elements selectivelyactuated in accordance with the arrangement of said code bars, and amechanical linkage connecting said pair of elements and said actuatorsfor shifting said actuators in accordance with the selective actuationof said elements.

21. In a composing machine, the combination including a plurality ofmatrix storage magazines each having a set of channels, a set of matrixrelease means including an actuator identified with each of saidchannels, and signal controlled apparatus responsive to the perforationsin a tape for operatively associating said release means with each ofsaid magazines selectively.

22. A composing machine including a plurality of magazines, a set ofmatrix release means including actuator reeds and delivery chutes, meansresponsive to certain stored signals for associating said matrix releasemeans with each of said magazines, and mechanism for thereafteroperating said reeds to release matrices from said magazines inaccordance with certain other stored signals.

23. In a composing machine, a plurality of magazines each having a setof matrix storage channels, a release mechanism having matrix releaseelements to accommodate each of said magazines individually, and meansunder "the control of signal initiation and operative from a powersource for changing'the relative association of said release means andsaid magazines.

24. In a linecasting andcomposing 'machine, a plurality of matrixstorage magazines, and means for shifting said magazines including ashifting lever, a rotatable member, a power driven shaft for rotatingthe member, and means for arresting the shaft invaric ius angularpositions. 25. In a linecasting and composing machine, an apparatus forshifting each of a plurality of matrix storage magazines into linecomposing position including a carriage for holding a plurality ofmagazines, a system of levers conneoted to said carriage,uni-directional power driven means for shifting said carriagethroughsaid levers, and means independent of saidcarriagefor disablingsaid power driven means upon arrival of a selected magazine into linecomposing position? i I 26, In a linecasting and composing machine, aplurality of matrix storage magazines, meansfor releasing matrices, means for receiving and delivering said released matrices, levers foralternatively associating said magazines .with. said matrix releasingand receiving means, uni-directional power actuated; means for operatingsaid levers, and means for terminating the power actuationof, saidlevers upon arrival of a selected magazine into operative position.

2'7. In a composing machine, a "p luralityjjof magazines each havingaset of channels,,.a plurality of matrices in each (manners singleshiftable matrix release mechanism common to corresponding channels indifferent ones of said. plurality of magazines, and power actuated meansto shift the release mechanism into operative association with a desiredset of channels.

28. In a linecasting and composing machine, a plurality of stationarilymounted matrix storage magazines, means selectively associable witheither of said magazines for releasing matrices therefrom, and poweractuated means for accomplishing the selective association of saidmatrix release means with either of said magazines. I

29. In a linecasting and composing machine, a plurality'of matrixstorage magazines, a line composing mechanism including apparatus capable of being placed into communicable association with said magazinesindividually, a rec ord reader responsive to stored signals forinitiating the performance of said composing mechanism, means under thecontrol of said record reader for shifting said apparatus intoassociation with each of said magazines, and means effective during theoperation of said shifting means for momentarily suspending theperformance. of said record reader.

30. In a linecasting and composing machine,

' a composing mechanism including a number of I signal controlledapparatus during the interval mechanism, a set of matrix releaseelements alternatively conditioned by said shifting mechanism, and meansto arrest the performance of said record reader during the operation ofsaid shifting mechanism.

32. In a line composing machine, a plurality of matrix storagemagazines, means for releasing matrices from said magazines selectively,means for varying the association between said magazines and said matrixreleasing means, a record reader mechanism for selectively controllingthe matrix releasing means and the magazine association varying means,and means for interrupting the record reader mechanism during theoperation of the magazine association varying means.

33. In a linecasting and composing machine, a plurality of matrixstorage magazines each having a set of matrix storage channels, meansfor releasing matrices from said magazines selectively, signalcontrolled means for controlling the atrix releasing means, and meansfor interrupting the signal controlled means during a magazine selectionoperation.

34. In a linecasting and composing machine, a plurality of matrixstorage magazines, a set of matrix release elements, means for shiftingsaid magazines to bring any one into cooperative relation with said setof elements, means responsive to stored signals for controlling saidmatrix release elements and said magazine shifting means, and means forinterrupting the signal responsive means during a magazine shiftingoperation.

35. In a linecasting and composing machine, a

plurality of matrix storage magazines to be shifted for individualeffective placement, and means for shifting said magazines including alever, a rotatable member engaged by said lever, means for rotating saidmember, and means for disabling said member in accordance With theplacement of a magazine.

36. In a linecasting and composing machine, a plurality of matrixstorage magazines, and means for shifting said magazines including alever, a rotatable member engaged by said lever, means for rotating saidmember, and means effective as a result of rotation of said member forarresting it in predetermined angular positions.

37. In a linecasting and composing machine, a plurality of matrixstorage magazines, and means for shifting said magazines including alever, a rotatable member engaged by said lever, means for rotating saidmember, and means rotatable with said member for determining thepositions of arrestment of the member.

38. In a linecasting and composing machine, a plurality of magazines tobe shifted for individual effective placement, and means for shiftingsaid magazines including a rotatable member, a lever operable by saidmember, a driving element, means for interconnecting said element andsaid member, means for establishing the interconnection, and meansindependent of the last mentioned means and effective as a consequenceof rotation of said member for severing said interconnection.

LOUIS M. PO'II'S.

